Invention Grant
US09357305B2 Apparatus for generating an enhanced downmix signal, method for generating an enhanced downmix signal and computer program
有权
用于产生增强的下混信号的装置，用于产生增强的下混信号的方法和计算机程序
- Patent Title: Apparatus for generating an enhanced downmix signal, method for generating an enhanced downmix signal and computer program
- Patent Title (中): 用于产生增强的下混信号的装置，用于产生增强的下混信号的方法和计算机程序
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Application No.: US13592977Application Date: 2012-08-23
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Publication No.: US09357305B2Publication Date: 2016-05-31
- Inventor: Fabian Kuech , Juergen Herre , Christof Faller , Christophe Tournery
- Applicant: Fabian Kuech , Juergen Herre , Christof Faller , Christophe Tournery
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Keating & Bennett, LLP
- Main IPC: H04R5/00
- IPC: H04R5/00 ; G10L19/008 ; G10L19/26 ; G10L21/02
Abstract:
An apparatus for generating an enhanced downmix signal on the basis of a multi-channel microphone signal has a spatial analyzer configured to compute a set of spatial cue parameters having a direction information describing a direction-of-arrival of a direct sound, a direct sound power information and a diffuse sound power information on the basis of the multi-channel microphone signal. The apparatus also has a filter calculator for calculating enhancement filter parameters in dependence on the direction information describing the direction-of-arrival of the direct sound, in dependence on the direct sound power information and in dependence on the diffuse sound power information. The apparatus also has a filter for filtering the microphone signal, or a signal derived therefrom, using the enhancement filter parameters, to obtain the enhanced downmix signal.
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